dinoflagellate

Definition of dinoflagellate

: any of an order (Dinoflagellata) of chiefly marine planktonic usually solitary unicellular phytoflagellates that include luminescent forms, forms important in marine food chains, and forms causing red tide

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'dinoflagellate.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.